<?php

namespace backend\models;

use app\models\AuthItem;
use Yii;
use yii\behaviors\TimestampBehavior;
use yii\db\ActiveRecord;
use yii\web\IdentityInterface;

/**
 * This is the model class for table "admin_user".
 *
 * @property integer $id
 * @property string $username
 * @property string $mobile
 * @property string $auth_key
 * @property string $password_hash
 * @property string $password_reset_token
 * @property string $email
 * @property string $group
 * @property integer $status
 * @property integer $created_at
 * @property integer $updated_at
 *
 */
class AdminUser extends \yii\db\ActiveRecord implements IdentityInterface
{
    public $password;
    
    /**
     * @inheritdoc
     */
    public static function tableName()
    {
        return 'admin_user';
    }

    /**
     * @inheritdoc
     */
    public function rules()
    {
        return [
            [['username', 'mobile', 'auth_key', 'password_hash', 'email', 'group'], 'required'],
            [['status', 'created_at', 'updated_at'], 'integer'],
            [['username', 'auth_key', 'group'], 'string', 'max' => 32],
            [['mobile'], 'string', 'max' => 11],
            [['password_hash', 'password_reset_token', 'email'], 'string', 'max' => 255],
            [['mobile'], 'unique'],
            ['mobile', 'match', 'pattern' => Yii::$app->params['match']['mobile']],
            ['email', 'email'],
            ['password', 'safe']
        ];
    }

    /**
     * @inheritdoc
     */
    public function attributeLabels()
    {
        return [
            'id' => '排序',
            'username' => '用户名',
            'password' => '密码',
            'mobile' => '手机号',
            'group' => '用户角色',
            'auth_key' => 'Auth Key',
            'password_hash' => 'Password Hash',
            'password_reset_token' => 'Password Reset Token',
            'email' => '邮箱',
            'status' => '状态',
            'created_at' => '创建时间',
            'updated_at' => 'Updated At',
        ];
    }
    
    public function behaviors()
    {
        return [
            [
                'class' => TimestampBehavior::className(),
                'attributes' => [
                    ActiveRecord::EVENT_BEFORE_INSERT => ['created_at', 'updated_at'],
                    ActiveRecord::EVENT_BEFORE_UPDATE => ['updated_at'],
                ],
            ],
        ];
    }
    
    
    public function beforeSave($insert)
    {
        if( !$this->hasErrors() && !AuthItem::findOne(['name' => $this->group]) ){
            $this->addError('group', '角色不存在');
            return false;
        }
        
        return parent::beforeSave($insert); // TODO: Change the autogenerated stub
    }
    
    public function afterSave($insert, $changedAttributes)
    {
        $auth = Yii::$app->authManager;
        if( isset($this->oldAttributes['group']) ){
            $auth->revoke($auth->getRole($this->oldAttributes['group']), $this->primaryKey);
        }
        $auth->assign($auth->getRole($this['group']), $this->primaryKey);
        parent::afterSave($insert, $changedAttributes); // TODO: Change the autogenerated stub
    }
    
    
    /**
     * @inheritdoc
     */
    public static function findIdentity($id)
    {
        return static::findOne(['id' => $id,]);
    }
    
    /**
     * @inheritdoc
     */
    public static function findIdentityByAccessToken($token, $type = null)
    {
        throw new NotSupportedException('"findIdentityByAccessToken" is not implemented.');
    }
    
    /**
     * Finds user by username
     *
     * @param string $username
     * @return static|null
     */
    public static function findByUsername($username)
    {
        return static::findOne(['username' => $username,]);
    }
    
    /**
     * Finds user by password reset token
     *
     * @param string $token password reset token
     * @return static|null
     */
    public static function findByPasswordResetToken($token)
    {
        if (!static::isPasswordResetTokenValid($token)) {
            return null;
        }
        
        return static::findOne([
            'password_reset_token' => $token,
        ]);
    }
    
    /**
     * Finds out if password reset token is valid
     *
     * @param string $token password reset token
     * @return bool
     */
    public static function isPasswordResetTokenValid($token)
    {
        if (empty($token)) {
            return false;
        }
        
        $timestamp = (int) substr($token, strrpos($token, '_') + 1);
        $expire = Yii::$app->params['user.passwordResetTokenExpire'];
        return $timestamp + $expire >= time();
    }
    
    /**
     * @inheritdoc
     */
    public function getId()
    {
        return $this->getPrimaryKey();
    }
    
    /**
     * @inheritdoc
     */
    public function getAuthKey()
    {
        return $this->auth_key;
    }
    
    /**
     * @inheritdoc
     */
    public function validateAuthKey($authKey)
    {
        return $this->getAuthKey() === $authKey;
    }
    
    /**
     * Validates password
     *
     * @param string $password password to validate
     * @return bool if password provided is valid for current user
     */
    public function validatePassword($password)
    {
        return Yii::$app->security->validatePassword($password, $this->password_hash);
    }
    
    /**
     * Generates password hash from password and sets it to the model
     *
     * @param string $password
     */
    public function setPassword($password)
    {
        $this->password_hash = Yii::$app->security->generatePasswordHash($password);
    }
    
    /**
     * Generates "remember me" authentication key
     */
    public function generateAuthKey()
    {
        $this->auth_key = Yii::$app->security->generateRandomString();
    }
    
    /**
     * Generates new password reset token
     */
    public function generatePasswordResetToken()
    {
        $this->password_reset_token = Yii::$app->security->generateRandomString() . '_' . time();
    }
    
    /**
     * Removes password reset token
     */
    public function removePasswordResetToken()
    {
        $this->password_reset_token = null;
    }
    
    public function create()
    {
    
        $this->setPassword($this->password);
        $this->generateAuthKey();
    
        if (!$this->validate()) {
            return $this;
        }
        return $this->save() ? $this : null;
    }
    
    public function updateUser()
    {
        if( $this->password ){
            $this->setPassword($this->password);
            $this->generateAuthKey();
        }
        return $this->save() ? $this : null;
    }
    
    /**
     * @return \yii\db\ActiveQuery
     */
    public function getGroup0()
    {
        return $this->hasOne(AuthItem::className(), ['name' => 'group']);
    }
    
}
